Method of making artificial variegated stone veneer.



- To all whom it my concern:

. ficial Variegated Stone UNITED sTArns-rgrENT OFFICE.

JOHN TULLY, OF- CHICAGO, ILLINOIS.

' METHOD OF MAKING ARTIFICIAL VARIEGATED STONE VENEER, I a

Be it known that I, J OHN TULLY, a citizen of the United States, and aresident of Chicago, in the county of Cook and State of Illinois, haveinvented-certain new and useful Improvements in Methods of Making Arti-Veneer, of which the following 1s a full, clear, and exact description.

Heretofore calcareous veneer has been used employing substantially thesame or equiva-' lent ingredient s used to make the body of my, improvedcomposition. In all of these veneers, however, no attempt has been madeto produce a variegated marbleiz ed appearance but simply by accidentorfdesign a single color efi'ect The object of myinvention is to producea plastic calcareous veneer aving a variegated marblei'zed appearance,in which the veinmg and intenningling of the colors is the same as inthe natural stone, which when applied leaves, no defined joint, and

' which when dry is capable of receiving a coat of sizing and of varnishthat imparts thereto the luster ofpolished stone. This I accomplish byan improved method of manipulating the composition of which the ve- Ineer is made and which, preferably, consists of a mixture of calcareousmaterial, such as lime, Portland cement, plaster of paris, Keen cement,or their equivalents, and asbestos fiber, linen jute, halr, talcum orother suitable fiber. Several difl'erent masses of these ingredients aremixed together. One mass I prefer to mix without any coloring matter,but to each of the other masses I add the coloring matter necessary toimpart thereto have. rately subject to a thorough pounding or thedistinctive color it is desired each should Each of these masses I thensepakneading, or squeezing, until each is reduced to a thoroughlydistributed homogeneous plastic mass, and where colored, until the coloris evenly difl'used throughout. I then sire toconstitute the body of themarbleized effect. I want to-produce, say white, or that mass to whichno coloring matter was added and roll. 1t out into a very thin sheet,and then take a smaller portion of one of the other masses, say blue,and placing it u on .the thinly rolled sheet of the bodyniass, old

the edges of the latter over the former, and

then roll the combined masses out into a thin sheet again. I then foldthe edges of this Specification of Letters Patent. Application filedlarch so, 1900: saw No. 308,910.

" Patented Oct. 13, 1908.

last rolled sheet of the combined masses over again, and so on again andagain, until I obtain'the desired distribution of the blue mass throughthe white mass, with the blue streaksand veins shot all throughout thewhite, similar to the veining of the natural-stone it is desired toimitate, and then I roll the mass out into a very thin veneer and outthe latter. into the shape desired to cover the object to which it isdesired-to apply the same. When folding over the edges I of the rolledmasses, during the process of reducing it I fold over the edges in adifferent manner each time and if desired I can roll .the sheet insteadof folding over the same so as to produce certain efiects.

It is preferred to apply a suitable sizing i to the wall or objecttowhich my improved veneer is to be applied in order to, make it adherethereto. ..I prefer this sizing to consist of lime, soluble silicate andfossil meal, or

glue and alum, or gelatin and silicate of soda.

Upon such sizing the thin sheets of veneer, while yet in a plasticcondition, are applied in such manner that the edges of each sheet willslightly overlap the edges of the adjoining sheet, and then the edgesare rolled until the seam between the two has entirely disappeared. Thisgives a continuous marbleized appearance to the wall or object to whichmy improved veneer is applied, and when the latter has set, or dried, itcan be sized and varnished and thus given a luster like unto polishedstone.

Either vegetable or mineral'coloring mat ter may be employed in makingthe above composition. I prefer, however, to employ powdered coloredglass, because of the permanency and brilliancy of the color.

' What I claim as new is 1. The method of manufacturing imitation s'toneveneer consisting, first, in mixing a plastic composition and separatinthe same into independent masses; secon impregnating several of saidmasses each with a separate color ingredient; third, rolling one or moreof said colored masses with one or more uncolored masses; fourth,folding and rollin said intermixed mass several tlmes; and fth,compressing the resultant mass into thin sheets.

2. The method of manufacturing imita- 'tlon stone veneer consisting,first, in mixing a plastic composition and separatln the same intoindependent masses; secon .im-

pregnating several ofsaidmasses each with a separate color ingredientcomposed of pulverized glass; third, rolling one or more of said coloredmasses with one or'more uncolored masses; fourth, folding and rollingsaid intermixed mass several times; and fifth, compressing the resultantmass into thin sheets.

3. The method of manufacturing imitation stone veneer consisting, first,in mixing a plastic composition and separating the same into independentmasses; second,impregnating several of said masses each with a separatecolor ingredient; third, rolling one or more of said colored masses withone or more uncolored masses; fonrth,-foldin and rolling said intermixedmass severa times; and fifth, compressin the resultant mass intothinsheets and app ying the same while in a plastic state. i

In testimony whereof I have hereunto 20 set my hand and seal this 21stday of March,

JOHN TULLY. 11. 8.

Witnesses:

FRANK D. THOMASON, E. K. LUNDY.

